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A revolution in revelation. Introducing the world’s first Earfield(TM) monitor.

The SR1a by RAAL-requisite is the world’s first Earfield™ Monitor. Experience mixing, mastering, and home listening with unparalleled accuracy and realism in a soundfield devoid of room acoustics and comb-filtering caused by work surface reflections. Earfield™ technology delivers unheard of program accuracy and a speaker-like soundfield experience.

2019 Fujiya Avic Headphone Festival in Tokyo

SR1a earns Gold in High-End Headphone Category
SR1a earns Silver in Entire Show Category

SR1a earns rare 6moons Blue Moon Award in 2019

“Equal to the best possible big hifi systems but without any of their issues of room interference, cabinet interference, port interference, crossover interference and the lot.”

SRAJAN EBAEN | 6MOONS.COM REVIEW →

Ribbons for a reason.

The SR1a is the world’s first True-Ribbon™ headphone. Highly specialized ribbon drivers were developed that reproduce 30Hz to 30kHz bandwidth in order to eliminate the need for sealed chambered bass and allow for open air baffles (both front and back) for a true full-frequency soundfield.

Incredibly comfortable.

Weighing in at only 425 grams (15 ounces). Unlike standard headphones who’s weight and heat create listener discomfort over time. The SR1a Earfield™ design eliminates heat buildup on the ears providing a cool, natural airflow. Your ears will also appreciate the complete absence of sound pressure against the eardrums caused by traditional sealed can designs. SR1a headphones can be worn comfortably for many hours at any listening level.

The RAAL Requisit SR1a ships now from Amsterdam

 Free shipping to all EU countries (ask for your rate outside the EU)

Reliable shipping: DPD and UPS

No custom processing, no duty fees

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Show room in the Heart of Amsterdam

In our show room you can listen to the SR1a next to the likes of the MySphere, The Abyss AB1266, Hifiman Susvara, Audeze LCD4 and the Sennheiser Orpheus HE-1. Please check out our Headphones on Audition section on this site for the current line-up.

The SR1a is on demo on a complete Chord Choral Set – MScaler – DAVE – Etude